Protector mechanism for looms.



C. J. LONG.

PROTECTOR MECHANISM FOR LOOMS.

APPLICATION FILED JULY 28. I917- Patntd Mar. 11,1919;

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mar/5.71210 3y WWW C. 1. LONG. PROTECTOR MECHANISM FOR LOOMS.

APPLICATION FILED JULY 28. I917.

Patented Mar. 11,1919.

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flitorneya c. J. Lona. wnoncms MECHANISM FOR LOOMS.

APPLICATION FILED JULY 28. 191?. Y 1,296,676. Patented Mar.11,1919.

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Inventor? Czar/ea 472 02 7 this objection simpleand efficient means for automatlcally,

. CHARLES J. Lone, or P IILADELPHIA, PEN

NSYLVANIA, ASSIGNOR Pro ANDREWS MILL VANI Application filed July 28, 1917..

To all whom it may concern.

Be it known that I, CHARLES J Low a citizen of the United States, and a resident of thecity of Philadelphia, county of Philadelphia, State of Pennsylvania, have invented certain new and useful Improvements 1n Protector Mechanism for Looms,

of which the following is a specification, reference being had'to the accompanying draw- 1I1gS.- r r I My invention relates to improvements in protector mechanism for looms wherein a pluralityof shuttle boxes and a plurality of shuttles are employed andiwherein the shuttles are selected and projected across the shuttle race of the lay and through the separated warp threads. 7 7

In the operation of looms: of thischaracter, it sometimeshappens thattwoshut- 2O tles appear in registry with the respective ends of .the shuttle. race, happens a .collision between the two shuttles takes place during the operation ofthe .loom which'resultsin breaking many of the warp threads. 3

The obje' t of my invention is to overcome by the provison of a novel, stopping the operation of the loomwhen two shuttles appear in registry ,tive ends of the shuttle race and before. any collision between them occurs. With thisobject. in view, my invention consists in the novel construction and: combinations of elements hereinafter described and claimed. a p i In theaccompanying drawings, illustrating my invention? 'Figure 1 1s aside view of a portion of a loom having my-inventlon applied thereto.

Fig. 2 is a front view thereof. 7 Fig. 3 is a sectional plan thereof, Fig. 4 is a sectional detail, enlarged, ing a portion of the mechanism operated by the electro-magnet. A I

. Referring to. the drawings, :2 designates the, loom frame, 3 the lay, pivoted, at 4, to the frame 2, and 5 'the driving shaft mounted to rotate in suitable bearings onthe frame 2. The driving shaft 5' isprovided with a bevel gear wheel 6 in mesh with a similar wheel 7on:a shaft 8. The gear wheel 7' is provided with spur teeth which mesh with a spur wheel 9 on atrank shaft 10,'the shafts 8 and 10 being mounted to rotate in suitable rnornc'ron MEoHanIsM non Looms.

Specification of Letters Patent.

rotation of the driving shaft *will be reciprocated in the usualmanner and and that when this with the .respecshowat-ed Mar. 11,1919, Seria1No'.183,2 1?.

bearings on the loom frame 2. i The cranks 11 of the shaft 10 are connected to the lay 3 by armsl2, as "shown ,'whereby during the 5, the lay Y 3 for the usual' well knownpurpose. Mount'edto turn shaft ,5 and" to move loosely on the driving.

longitudinally thereon g is a pulley '1'3 which is driven'from' a ,suitable source of power; by 'abelt 14:. The inner side of the pulley'13 has a clutch flange 15 which is adapted to engage a clutch flange 16' on'the adjacent side of a brake wheel 17 which is'securedj on the shaft 5."

The hub 18'of the pulley 13 has a circumferential groove formed therein, in which is arranged a ring'19 havi'ng projecting pins V which are engaged by "pivoted at 21 to a v 2. The upper end'of'the armf20 is pivotally connected to one end of" a -rod or bar 22;

V to the lower'armi of a lever'23which is fulcrumed, at 24, on the loom frame 2.' circling the bar 22 is a spring 25' one end of which bears against a collar 26 secured on the-"bar22 and the from the loom frame 2.

the bar 22 and arm 20 and tends to move the pulley 13 away from. the wheel '17 .When the pulley 13' is movedinto engagement with other end of' 'which bears against a bracket 27 7 which: projectsan arm 20 which 1 1s bracket on 'theloom frame and the other end of'the bar 22 is pivoted the wheel 17 and held .in engagement there-"- with against the action of the spring 25, the power is transmitted from 13 to the driving shaft 5 and the loomi is set in motion, and when thepulley 13 is -moved from engagement with the wheel'17 1 the 100m comes to a standstilland the'pulley 13 turns idly onthe shaft5'.

To move the pulley into engagement with the' wheel 17 to set theloom in motion and the pulley to hold the pulley 13in 'en-gagement with the wheel 17 a hand lever 28 is provided which is fulcrumed, at 29,- on the loom .frame 2.

The upper arm of the' lever 28 is provided with ahandle 30, and'the lower arm of the V lever 28' is provided with a pin-'31 which '105 '7 projects into a slot 32 formed in the upper arm of the lever 23*hereinbefore referred to. p

The upper end of-the slot 32-terminatesin :a lateral socket "33 adapted toform a seat to receive the pin 31.

of the lever 28 is moved outwardly or in the Whenthe upper arm.

i5,- j theloemhy hend he ame-may he done by ,7

warelly loom,sfnqmeviiwhereby-When the: rod: 34

ere tz pwerd y,

"theblake bane 139 the-lever 36 -brakeanouhdand: islael lete to e gage the upper portion. ofithe direction of the arroiv to the positionshovvn in Fig. 1, the pin 31 engages the wall of the slot 32 and moves the lever 23 on its fulcr'iiin 24' and therebymoves: the bar 22; the opposite direction ofthe arrow against I the action of the spring 265 and movesthe.

pulley 13 into engagement with the Wheel 17 as the pin 31 comes to rest in the socket 33: I n-th-is position ofthe parts, thepulley 13 is held against the Wheel 17 by the engagement of the pin 31 With the Wallof theeoeket 33 dueto therelation of the pin 31 andes eket 33 110 the fulcrum- 901111 2 and 2 035 the l ve s z and 2 respectively- 'i ,de i dito step the operatlenef movlng the itpger arm; of the lever 28. 111-. or reveteely of the d r c ion ofi h els ew', thereby d sengaging the; pin f m vthe w llloii theseeket amend permitting the spei-ngfifi; o"

mer -thepull y f gag'e hent with-the wheel 1;?- I V Adja nt te he-l vere23i and 28-is a verti earlly extending 1x0 15534- having its upper pertien enemieshro gh ihreeket 3aon theloom freme 2" and. having 1 5 93 n pivete l'teo e. arm of a e er an opening in a 36- Wh, s. 1e fl film le d at 3 on a b acke 38; em the eerie: frame'% Th othe ef 'iS CGIIHQGiZQCl'lO? one end of a bend- ;39 which extends over and a and tQP the nope ration of the 100 -1 afte pie-med; i

the -p1i11.ey' 1.3 is; moved rom engagemen with the Wheel v 34 a spring 41 0 9 end of which hears against a bracket 4:52 on bears he d downinthe" position -d1 aWi-ngs-egeins't' t e ac ion of the. spring 113, holding the brake and re eased from the Whe l;:1.- ,I by the Wall of; the spying; 445" the-loom frame 2' and the other end of. which against a col-lar3. secured on the rod '34 which it tends toraise. The rod is shown in the 7 pi? not-ch- 4:4: in themed; 3 engaginga pin e5g-Whi0h: projects into the opening in the bracket 35. l he rod 3 L is pre sed' against the pin- 45 to maintain the well f therewith by a flat spring-46, the; lower ;en.d Of iehisiseeurl d' toe c llar on the rod 3-4 end-the uppe engeseeth a l e 't eopening in the 6 ther-ro'cl 4.- inward'ly against th ti he. wallef the notch 44 the notch 44 in e gageme'nt end; oflwhi-ch extendsv int-0 :et'F3 opposite ot-he pin-1,5: By press- .disengagecl from the pix-1142 therei the rod 34 an d permitting it, to

he a sed to: ewe-1v the brake as.- previoi'isly descrihed, 'Ehe rod 34 has a bracket L7 se- 17 as. will be. presen ly: e

cured thereto. and provided with, an ,iiiclined cam face Which is adapted to engagethe i lower arm of thelever 2-8 and moveit out- Wardly to disengageit's pin 31 from the Wall ofthe' socket. when the rod"3i is raised justdescribed, and thereby move the pulley" 13 from engagement With the Wheel17, as previously explaine cl,; before the 1"od34 is moved a sufiicient distance to pply th3* 1 lk -39. 7

The lever 36 projects forwardly from the rod 34 and its forward: end; is a'dapted' to be .clep-ressed by-rfeot powe to the position ShOWlIZ Il the dsewihgjsvte release the brake 39, before: i

When-th lerer 6 is: thusdepres sed it draws the rede do n-against. the aet on o fi the shrill-$41 he; flat spring'fi automet eel-1y engages the Well of the; netch i-W-ith the pin v depressed after the re )QYQL Qf' the. feet pressure from the le erh I s I v V It? will thus Y be I seen that; when the: parts reset in. the p'ositioiii shown in the V draivings; the lbom that, thereafter, the'upp'er end of the rod 34. be moved to disengage the wall, of the notch-4A1: from; theipin- 41 5;; the pulley 13: will hefdisengaged froixrthe Wheel; 17?, and; that,

45 to hold the lever 36 and 3 4,

'Will beseltinv motion, and

Immediately thereafter the brake 39min he r 7 applied tor stop? thev operation; of the, loo-n1.

lary 3'is providedqwiththe usual shut- 'tle race-48; over whigh the shuttles are proijecfiediwhen they-"are shot; th-rmrgh-theseparated Warp threads in the usuahmannery Y and-the lay carries: the F usual shirttlea boxes 459*at the respective; ends of theish-iittle race ft-8. The; shuttle .b-oX'es arexvertically: mov- Fable: on the :lay' the usual devieesfandin the manner to bring" difl erent boxes i ntdregiistry'with the respective endsofi the shuttle race fiortheseleotionoii shlittlestor V ,purposeto; be shotr through the .7 the usual 7 SQ'IQHll3ItQdF warorthrea dsq; and, as is well known, when a; shuttle istle box, which is in registry Withloneend of the shuttle race 4:85 the shuttle box at the opposite end of the shuttle race 48 should be emptytotzreceive, the shuttle and' for the ,p reveilti'on this. .I I '7 'Eachishuattlie box: 49 isprovide'd with'the usual vpivoted arm 50 which, rwhenino' shuttleris present Within the box, i s;h eld normally in an inner left-hand side oi -Fig. 3.3; and which,-i When a shattle enters v the hox, is. moved thereby to; i an outer p ositioii, .hllflEl 'SldEi of ig.

contact springs -52- which are positioned to present in a shutof a collision'between two shut as shown at the right llfEoulited 011 the; hrea'st heain :51 are" tWo position, as: shown at the hef ehgeiged: by the arms 50' of the tWo sh-ut- 'tle: boxes? respective'eilds oi theshuttle race 48' When 4.9 Which arein registryWi-th the i V spring electr c circuit whlch is normally open beon the the bar ner position.

The armsv' are electrically connected by a Wire 53- and they are insulated from'the contact springs 52. Leading from one contact spring; 52 to a'battery 54 is a wire 55,

leading from the battery 54 to an electromagnet 56-is awire'57 and leading-"from the electro-magnet ,56 to theother contact 52 is ftWlIQ 58, thus providing an tween the-arms50 and contact springs52 at the respective ends of the loom, and'which when closed at its two open' -points'will energize the electro magnet 56 for a purpose presently appearing.

The electro-magnet 56 is mounted on a bracket on the" loom frame '2 with the end of the core thereof directly beneath the outer 1 end portion of a metal bar 59 which extends through and is slidable within a bracket 60 loom frame 2. The bar 59 projects inwardly beyond the bracket 60 and it is provided with a collar 61 between which and the bracket 60 a spring 62 encircles the bar 59 and tends to move the bar inwardly. The

top of the outer end portion ofthe bar 59 movement'within the has a slight vertical bracket 60 and it is provided with a tooth 63 adapted to engage the bracket 60 and hold 59 inan outer position as shown in Fig. 4, against thetaction of the spring 62. When the bar 59 is set in this position, and the 'e'lectro-magnet 56 is energized it will draw the outer end of the bar 59 down and disengage the tooth 63 from the bracket 60 and permit the spring 62 to project the bar 59 inwardly. When the parts are set in the position shownin the drawings, the inner end of the bar 59 is adjacent to-the rod 34; and, when the bar 59 is projected inwardly it will move the rod 34 inwardly against the action of the spring 46 to disengage the wall of the notch 44 from the pin 45 and stop the operation of the loom, as previously explained. The outer end of'the bar59 is pro vided with a suitable handle by means .of which it may be set in the position shown.

7 The operation of the device,-briefly described, is as follows:

' and the electric circuit remains open 'tweenthe other contact spring When the'loom 1s in motion, the parts are in the position shown in the drawings; and,

each time the lay 3 moves toward normally,

beam 51 there is a shuttle resent the breast in but one of theshuttle boxes 49 which are in registry with the respective ends of the shuttle race 48 so that but one arm 50 makes contact with the adjacent contactspring 52 If, however, as the lay adjacent arm 50.

during which is on its beating-up stroke,

.48, the arms'50of The electro magnet and the bar'59engages it from engagement with the pinx45- and the further movement Y viouslyexplained,

' reengage 52 and the time the shuttle box motion operates, two shuttlesshould bepresen't'in the shuttle boxes 49. at the respective endsof-the' shuttle race I the two shuttle boxeswill' "makeicontact with. the .springs52, as the lay- 3 reaches the limit ofits forward movement and before either circuit and energizing the electro magnet 56. :56 being energized, draws down the'outer'en'dof the bar'59 and frees the tooth63 from the spring 62 projectsthe bar 59 inwardly, the'rod 84 and moves 7 huttle is shot acrossthev shuttle race 48, thereby closing the electric the bracket-60 and V thereby stops the operation of. the loom and i I of the lay' 3, as pre-' thereby avoiding a ;collision between the two shuttlesandIavoidin-g the consequent breaking of the warp threads. After the loomhas been" thus *stopped',the

proper adjustment of the parts is effected to correct the positions of the shuttles; whereupon the bar 59 is moved outwardly by hand and its tooth 63 reengaged with thebracket 60, the lever 36is then depressed by'foot to lease the brake 39, and the upper arm of the hand lever 28 is moved outwardly to reengage the pulley 13 with thepwheel 17 to set the loom in motion, leaving the parts in therposi tion shown for a succeeding auto matic stopping operation should two shuttles the rod 34 with the pin 45 to reagain appear in the two shuttle boxes 49 at I V the respective ends ofthe shuttle race 48.:

I claim I 1. In a loom, the combination of the frame thereof, a lay, operating means for the lay, a plurality of shuttle boxes carried by the lay and movable into registry with its shuttle race at each end thereof, a member movable to' and froma set position, means to hold said member in its set position, means to move said member from its setposition when released, a movable part,'a spring to move said part, means to hold said part in a set positiona'gainst the action of its spring,

means operated by two shuttles when, they are presentin'boxes which are in registry with the respective ends of said race to automatically release said part from its holding.

means, said part when-released fromits holding means operating "to release said and means 7 member from its holding. means,

operated by said memberwhen released to stop the operation of the lay.

2. In a loom, the combination of the frame thereof, a lay, operatingmeans for thelay,

a plurality of shuttle boxes carried by the V lay and movableinto registry with its shuttle race at each end thereof, a member mov-' able to and'from a set position, means to to move said member from its set position when released, a movable part, a spring to hold said member in its set position, means moyefsaid part, means to hold said part in aset position against the action of its spring,

" electrically controlled means operated; by two shuttles-When they are present int boxes which 'are'in registry'with' the respective 7 ends ofsaid race-toautomatically release said part from its. holding means, said part when' released; from its; holdingmeans oper- 7 thereof, a lay, l5.

of the: lay;

a plurality ofishuttle boxes, carried by the Flay and movable into registry with its shuttle race at ea ch'end thereof, a; member movable to andt from aset I holdrsaid member in its: set position, means "031F135. f fl i tpa e h her ain or Vmove said part, means to its holdhand this 27th day ofiJuly}, L917, position, means to 1 V r to move said member from its-,set-position when released, a movable hold sald part in part, a spring to t a'set; position against; theaction of its spring, a normally open electric circuit, means operated by two shuttles Whenthey are present in boxes which are in registry with the respective ends of said race to automatically close said circuit',,mean s operated by said circuit when closed to releasesaid part from i its holding means, saidp'art hen released from itsholding? means operating; to release said member from its holding means,;and means operated by} said; member when: released to stop the operation ofthel'ay. y

In witness whe'reofg l have h reunto'set my CHARLES: J; LONG- fi ve cents each, by addressing the qommissi oner of Paten ts, v

Washington, J). 0

so o 

